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Credit: AFP/Getty Images

US President Barack Obama takes the oath of office in front of (L-R) First Lady Michelle Obama, daughters Malia and Sasha during the 57th Presidential Inauguration ceremonial swearing-in at the US Capitol on January 21, 2013 in Washington, DC. US Chief Justice John Roberts administered the oath. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/Getty Images)